diff --git a/Modules/Company/Http/Controllers/CompanyController.php b/Modules/Company/Http/Controllers/CompanyController.php
index 36911dc6..4cdbd808 100644
--- a/Modules/Company/Http/Controllers/CompanyController.php
+++ b/Modules/Company/Http/Controllers/CompanyController.php
@@ -109,7 +109,7 @@ class CompanyController extends Controller
         ]);
 
         $data['slug'] = Str::slug($data['name']);
-        $data['timezone'] = $data['timezone'] ?: ($company?->timezone ?: 'Europe/London');
+        $data['timezone'] = $data['timezone'] ?? ($company?->timezone ?: 'Europe/London');
 
         return $data;
     }
diff --git a/Modules/Company/changelog.yaml b/Modules/Company/changelog.yaml
index 070ca780..ece3cff1 100644
--- a/Modules/Company/changelog.yaml
+++ b/Modules/Company/changelog.yaml
@@ -12,3 +12,8 @@ versions:
     date: 2026-07-02
     changes:
       - Initial Company module skeleton.
+
+- version: 1.0.2
+  date: 2026-07-02
+  changes:
+    - Fixed company create/update validation when timezone is omitted from request payloads.